CN216167366U - Double-air-bag auxiliary device for enteroscopy - Google Patents

Abstract

The utility model relates to the technical field of medical instruments, in particular to a double-air-bag auxiliary device for enteroscopy, which comprises an endoscope and a stretching mechanism, wherein the endoscope is arranged in the double-air-bag auxiliary device; the stretching mechanism comprises a first fixing part, a connecting rod and a second fixing part; the endoscope is inserted in the first fixing part and the second fixing part; connect through the connecting rod between first fixed part and the second fixed part, in the extension mechanism carried the entering human body through the scope, two point location are realized to first fixed part of external operation control and second fixed part in the human body, and the intestinal of human bending is flare-outed through the hardness of connecting rod to the looking over of scope camera lens is convenient for. The intestinal tract bending part is spread under the assistance of the first air bag and the second air bag which are inflated, so that the focal part can be clearly observed by an enteroscope, and the treatment is carried out.

Description

Translated fromChinese

一种用于肠镜检查的双气囊辅助装置A double-balloon assist device for colonoscopy

技术领域technical field

本实用新型涉及医疗器械技术领域，特别是涉及一种用于肠镜检查的双气囊辅助装置。The utility model relates to the technical field of medical devices, in particular to a double airbag auxiliary device for colonoscopy.

背景技术Background technique

无痛胃肠镜是采用一种新的无痛技术，使病人可在无痛状态下完成整个检查和治疗过程。整个过程胃镜检查只需20-30分钟，结肠镜只需30至50分钟。检查和治疗后，一般只需休息5至10分钟左右即可回家。做胃镜检查时不能吃任何食物，而肠镜则需要吃泻药清洗肠内容物，便于胃肠镜的观察。Painless gastroenteroscopy is a new painless technology that enables patients to complete the entire examination and treatment process in a painless state. The whole process only takes 20-30 minutes for gastroscopy and 30-50 minutes for colonoscopy. After examination and treatment, it is generally only necessary to rest for about 5 to 10 minutes before going home. Do not eat any food during gastroscopy, and colonoscopy requires laxatives to clean the intestinal contents, which is convenient for the observation of gastroenteroscopy.

成年人小肠全长约为5-7米，占胃肠道总长的70％～80％。小肠疾病的发病率约占消化道疾病的0.3％～1％，但由于其特殊的解剖结构，小肠疾病的诊治一直是医学上的难题。肠镜是一种西医检查方法，也是指这种检查使用的器具，肠镜检查能直接观察到被检查部位的真实情况，更可通过对可疑病变部位进行病理活检及细胞学检查，以进一步明确诊断。它借助一条纤细、柔软的管子伸入肠道中，医生可以直接观察肠道的病变，尤其对微小的病变，但在检查时由于患者的肠道腔弯曲、褶皱，导致在使用肠镜检测时，肠镜的转弯角度过大，使得肠镜检查时不能照到病灶，不能便于后续对其进行治疗。The adult small intestine is about 5-7 meters long, accounting for 70% to 80% of the total length of the gastrointestinal tract. The incidence of small intestinal diseases accounts for about 0.3% to 1% of digestive tract diseases, but due to its special anatomical structure, the diagnosis and treatment of small intestinal diseases has always been a difficult medical problem. Colonoscopy is a Western medical examination method, and also refers to the instrument used for this examination. Colonoscopy can directly observe the real situation of the inspected part, and can further clarify the suspicious lesions by pathological biopsy and cytological examination. diagnosis. It extends into the intestine with a slender, flexible tube. Doctors can directly observe the lesions of the intestine, especially for tiny lesions. However, due to the curvature and folds of the patient's intestinal lumen during the examination, when the colonoscopy is used for detection, The turning angle of the colonoscope is too large, so that the lesions cannot be illuminated during colonoscopy, and subsequent treatment cannot be facilitated.

实用新型内容Utility model content

1．要解决的技术问题1. technical problem to be solved

本实用新型目的针对现有技术中在做肠镜时，由于肠道的弯曲褶皱，导致肠镜的转弯角度过大，不能照到病灶，不能对病灶发现，治疗等问题，提供了一种用于肠镜检查的双气囊辅助装置。The purpose of this utility model is to solve the problems of the prior art when performing colonoscopy, due to the bending and folds of the intestine, the turning angle of the colonoscope is too large, the lesions cannot be illuminated, and the lesions cannot be found and treated. Dual-balloon assist device for colonoscopy.

2．技术方案2. Technical solutions

为解决上述问题，本实用新型采用如下的技术方案。In order to solve the above problems, the present invention adopts the following technical solutions.

一种用于肠镜检查的双气囊辅助装置，包括内镜和拉伸机构；拉伸机构包括第一固定部、连接杆和第二固定部；内镜插设在第一固定部和第二固定部内；第一固定部和第二固定部之间通过连接杆连接，拉伸机构通过内镜携带进入人体内，体外操作控制第一固定部和第二固定部在人体内实现两点定位，通过连接杆的硬度将人体弯曲的肠道拉直，以便于内镜镜头的查看；所述第一固定部和第二固定部在人体内的定位通过充放气实现，充气时，第一固定部和第二固定部与肠道外壁贴合定位；放气时，第一固定部和第二固定部可顺畅通过肠道；所述第一固定部和第二固定部均连接有气体充放机，由所述气体充放机进行充放气控制。A double balloon auxiliary device for colonoscopy, comprising an endoscope and a stretching mechanism; the stretching mechanism comprises a first fixing part, a connecting rod and a second fixing part; the endoscope is inserted in the first fixing part and the second fixing part Inside the fixing part; the first fixing part and the second fixing part are connected by a connecting rod, the stretching mechanism is carried into the human body through the endoscope, and the external operation controls the first fixing part and the second fixing part to achieve two-point positioning in the human body, The bent intestine of the human body is straightened by the hardness of the connecting rod, so as to facilitate the viewing of the endoscope lens; the positioning of the first fixing part and the second fixing part in the human body is realized by inflation and deflation. The first fixing part and the second fixing part are in close contact with the outer wall of the intestinal tract; when deflation, the first fixing part and the second fixing part can pass through the intestinal tract smoothly; the first fixing part and the second fixing part are connected with gas filling and discharging The gas charging and discharging machine is used for charging and discharging control.

优选地，所述第一固定部包括第一固定本体和第一气囊；第一气囊位于第一固定本体周外侧；连接杆远离第二固定部的一端与第一固定本体连接，所述连接杆内设有与第一气囊连通的第一充放气通道。Preferably, the first fixing part includes a first fixing body and a first airbag; the first airbag is located outside the circumference of the first fixing body; one end of the connecting rod away from the second fixing part is connected to the first fixing body, and the connecting rod A first inflation and deflation channel communicated with the first airbag is arranged inside.

优选地，所述第二固定部包括第二固定本体和第二气囊；第二气囊位于第二固定本体周外侧，且第二气囊位于靠近第一固定部一端口处；第二固定本体内壁上设有贯穿的连接通道，连接通道一端延伸至外界用于充放气；连接杆远离第一固定部的一端连接于连接通道内；第二固定本体内壁上设有与第二气囊连通的第二充放气通道，第二充放气通道延伸至外界用于充放气。Preferably, the second fixing part includes a second fixing body and a second airbag; the second airbag is located outside the circumference of the second fixing body, and the second airbag is located near a port of the first fixing part; the inner wall of the second fixing body There is a connecting channel running through, one end of the connecting channel extends to the outside for inflation and deflation; the end of the connecting rod away from the first fixing part is connected in the connecting channel; the inner wall of the second fixing body is provided with a second airbag that communicates with the second airbag. Inflating and deflating channels, the second inflating and deflating channels extend to the outside for inflating and deflating.

优选地，第一充放气通道和第二充放气通道延伸至外界的一端均连接有压力检测器，用于对第一充放气通道和第二充放气通道监测充放后气体的压力值。Preferably, both ends of the first inflation and deflation channel and the second inflation and deflation channel extending to the outside are connected with a pressure detector, which is used to monitor the first inflation and deflation channels and the second inflation and deflation channels. Pressure value.

优选地，第一固定部、内镜和第二固定部；内镜的外径分别小于第一固定部和第二固定部的内径。Preferably, the first fixing part, the endoscope and the second fixing part; the outer diameter of the endoscope is respectively smaller than the inner diameter of the first fixing part and the second fixing part.

优选地，所述第一充放气通道和第二充放气通道端口分别设有封闭阀。Preferably, the ports of the first inflation and deflation channel and the second inflation and deflation channel ports are respectively provided with closing valves.

优选地，所述连接杆为具有一定硬度的塑料材质制成。Preferably, the connecting rod is made of a plastic material with a certain hardness.

优选地，所述第一固定本体、内镜和第二固定本体同轴心。Preferably, the first fixed body, the endoscope and the second fixed body are concentric.

优选地，所述封闭阀包括阀体、阀片和支撑盘；阀片和支撑盘分别位于阀体内；支撑盘通过多根连接杆固定在阀体通道内；支撑盘中部设有触点；阀片位于阀体上端面内壁与触点之间。Preferably, the closing valve comprises a valve body, a valve plate and a support plate; the valve plate and the support plate are respectively located in the valve body; the support plate is fixed in the valve body channel through a plurality of connecting rods; the middle of the support plate is provided with a contact point; The sheet is located between the inner wall of the upper end face of the valve body and the contact.

优选地，所述阀片为具有柔性的材料所制。Preferably, the valve plate is made of a flexible material.

优选地，所述第二固定部为具有柔性的材质制作。Preferably, the second fixing portion is made of a flexible material.

优选地，所述第一固定本体和第二固定本体的内径相同。Preferably, the inner diameters of the first fixing body and the second fixing body are the same.

3.有益效果3. Beneficial effects

与现有技术相比，本实用新型的有益效果是：Compared with the prior art, the beneficial effects of the present utility model are:

一、一种用于肠镜检查的双气囊辅助装置，在通过肠镜检查时，遇到病灶位于肠道弯曲处不能查看到进行治疗时，通过对第一气囊和第二气囊进行充气，在第一气囊和第二气囊的作用下，将肠道弯曲部位撑开，使得肠镜可以清楚的观察到病灶部位，并且进行治疗。1. A dual-airbag auxiliary device for colonoscopy, when the lesion is located at the curvature of the intestine and cannot be seen during colonoscopy, the first airbag and the second airbag are inflated, and the first airbag and the second airbag are inflated. Under the action of the first air bag and the second air bag, the curved part of the intestinal tract is stretched, so that the colonoscope can clearly observe the lesion part and carry out treatment.

二、在第一固定部的一端连接有连接杆，连接杆是带有一定硬度的柔性塑料，连接杆位于连接通道内，且可以在连接通道内活动，第一固定部通过连接杆与第二固定部连接，在需要将肠道撑开时，连接杆可以利用一定硬度起到支撑的作用，而且连接杆具有的柔性可以在肠镜弯曲时，随肠镜一起弯曲。2. A connecting rod is connected to one end of the first fixing part. The connecting rod is a flexible plastic with a certain hardness. The connecting rod is located in the connecting channel and can move in the connecting channel. The first fixing part communicates with the second connecting rod through the connecting rod. The fixed part is connected, and when the intestine needs to be opened, the connecting rod can use a certain hardness to play a supporting role, and the flexibility of the connecting rod can be bent together with the colonoscope when the colonoscope is bent.

三、在连接杆内设有与第一气囊连通的第一充放气通道，在第二固定本体内壁上设有与第二气囊连通的第二充放气通道，在第一充放气通道和第二充放气通道的端口处都安装有封闭阀，通过推动阀片，使阀片与触点接触，使得阀片弯曲，实现封闭阀打开。3. The connecting rod is provided with a first inflation and deflation channel communicating with the first airbag, a second inflation and deflation channel is provided on the inner wall of the second fixed body and communicated with the second airbag, and the first inflation and deflation channel is provided on the inner wall of the second fixed body. A closing valve is installed at the port of the second air charging and discharging channel, and by pushing the valve sheet, the valve sheet is brought into contact with the contact, so that the valve sheet is bent and the closed valve is opened.

附图说明Description of drawings

图1是本实用新型的结构示意图；Fig. 1 is the structural representation of the present utility model;

图2是本实用新型的剖视图；Fig. 2 is the sectional view of the present utility model;

图3是本实用新型的第一固定部的剖视图；3 is a cross-sectional view of the first fixing portion of the present invention;

图4是本实用新型的第二固定部的剖视图；4 is a cross-sectional view of the second fixing portion of the present invention;

图5是本实用新型的压力监测充放一体装置处的结构示意图；Fig. 5 is the structural schematic diagram of the pressure monitoring charging and discharging integrated device of the present invention;

图6是本实用新型的封闭阀的剖视图；6 is a cross-sectional view of the closing valve of the present invention;

图7是本实用新型的封闭阀的在受力被打开时的状态示意图；Fig. 7 is the state schematic diagram of the closing valve of the present invention when the force is opened;

图8是本实用新型的第一气囊和第二气囊没有充气在肠道内的状态图；8 is a state diagram of the first air bag and the second air bag of the present invention not being inflated in the intestinal tract;

图9是本实用新型的第一气囊和第二气囊充气状态图；Fig. 9 is the first air bag and the second air bag inflation state diagram of the present invention;

图10是本实用新型的第一气囊和第二气囊充气后在肠道内的状态图。Fig. 10 is a state diagram of the first air bag and the second air bag of the present invention in the intestinal tract after inflation.

图中，1、第一固定部；11、第一固定本体，12、第一气囊，13、支撑杆，131、第一充放气通道；In the figure, 1, the first fixed part; 11, the first fixed body, 12, the first air bag, 13, the support rod, 131, the first inflation and deflation channel;

2、内镜；2. Endoscope;

3、第二固定部；31、第二固定本体，311、连接通道，312、第二充放气通道，32、第二气囊；3. The second fixing part; 31. The second fixing body, 311, the connecting channel, 312, the second inflation and deflation channel, 32, the second air bag;

4、封闭阀；41、阀体，42、阀片，43、支撑盘，431、触点；4. Closed valve; 41, valve body, 42, valve plate, 43, support plate, 431, contact;

5、压力监测充放一体装置；5. Pressure monitoring charging and discharging integrated device;

a、病灶；b、肠道。a, lesions; b, intestines.

具体实施方式Detailed ways

如图1-10所示，一种用于肠镜检查的双气囊辅助装置，包括第一固定部1、内镜2、连接杆13和第二固定部3。第一固定部1和第二固定部3之间通过连接杆13连接。内镜2的外径分别小于第一固定部1和第二固定部3的内径，内镜2可以在第一固定部1和第二固定部3内移动。第一固定部1、内镜2和第二固定部3同轴心。本方案中第一固定部1和第二固定部3在人体内的定位通过充放气实现，充气时，第一固定部1和第二固定部3与肠道外壁贴合定位；放气时，第一固定部1和第二固定部3可顺畅通过肠道。As shown in FIGS. 1-10 , a double-balloon auxiliary device for colonoscopy includes afirst fixing part 1 , anendoscope 2 , a connectingrod 13 and asecond fixing part 3 . Thefirst fixing part 1 and thesecond fixing part 3 are connected by a connectingrod 13 . The outer diameter of theendoscope 2 is smaller than the inner diameter of the first fixingpart 1 and thesecond fixing part 3 respectively, and theendoscope 2 can move in the first fixingpart 1 and thesecond fixing part 3 . Thefirst fixing part 1 , theendoscope 2 and thesecond fixing part 3 are coaxial. In this solution, the positioning of thefirst fixing portion 1 and thesecond fixing portion 3 in the human body is achieved by inflation and deflation. During inflation, thefirst fixing portion 1 and thesecond fixing portion 3 are positioned in close contact with the outer wall of the intestinal tract; , the first fixingpart 1 and thesecond fixing part 3 can pass through the intestinal tract smoothly.

具体地，如图3所示，第一固定部1包括第一固定本体11和第一气囊12。第一气囊12位于第一固定本体11周外侧，连接杆13一端与第一固定本体11下端连接。在连接杆13内设有与第一气囊12内腔相连通的第一充放气通道131，通过第一充放气通道131可以对第一气囊12进行充气或者放气。Specifically, as shown in FIG. 3 , the first fixingpart 1 includes afirst fixing body 11 and afirst air bag 12 . Thefirst air bag 12 is located outside the circumference of the first fixingbody 11 , and one end of the connectingrod 13 is connected to the lower end of the first fixingbody 11 . A first inflation anddeflation channel 131 communicated with the inner cavity of thefirst airbag 12 is provided in the connectingrod 13 , and thefirst airbag 12 can be inflated or deflated through the first inflation anddeflation channel 131 .

具体地，如图4所示，第二固定部3包括第二固定本体31和第二气囊32。第二气囊32位于第二固定本体31周外侧，第二气囊32位于第二固定本体31靠近第一固定部1的一端。在第二固定本体31内壁上设有与第二气囊32连通的第二充放气通道312，通过第二充放气通道312可以对第二气囊32进行充气或者放气，第二固定本体31内壁上设有贯穿的连接通道311，连接杆13位于连接通道311内。Specifically, as shown in FIG. 4 , thesecond fixing portion 3 includes asecond fixing body 31 and asecond airbag 32 . Thesecond air bag 32 is located outside the circumference of thesecond fixing body 31 , and thesecond air bag 32 is located at one end of thesecond fixing body 31 close to thefirst fixing portion 1 . On the inner wall of the secondfixed body 31 is provided a second inflation anddeflation channel 312 that communicates with thesecond airbag 32 . Thesecond airbag 32 can be inflated or deflated through the second inflation anddeflation channel 312 . The inner wall is provided with a connectingchannel 311 , and the connectingrod 13 is located in the connectingchannel 311 .

具体地，第一固定部1和第二固定部3均连接有气体充放机，由气体充放机进行充放气控制，气体充放机通过第一充放气通道131和第二充放气通道312进行充放气，可以通过对充气时间定长来确定充气量。第一充放气通道131和第二充放气通道312延伸至外界的一端均连接有压力检测器，用于对第一充放气通道131和第二充放气通道312监测充放后气体的压力值，通过对气体压力值检测，便于在压力不足时加气，在压力过高时放气，从而控制第一气囊12和第二气囊32的大小。或者如图5所示，可以将第一充放气通道131和第二充放气通道312延伸至外界的一端连接压力监测充放一体装置5，压力监测充放一体装置5是压力检测器和气体充放机整合在一个外壳内形成的。关于压力检测器和气体充放机可采用现有技术进行解决。Specifically, both the firstfixed part 1 and the secondfixed part 3 are connected with a gas charging and discharging machine, and the gas charging and discharging machine is controlled by the gas charging and discharging machine, and the gas charging and discharging machine passes through the first charging and dischargingchannel 131 and the second charging and discharging. Theair channel 312 is inflated and deflated, and the inflation amount can be determined by determining the inflation time. One end of the first inflation anddeflation channel 131 and the second inflation anddeflation channel 312 extending to the outside is connected with a pressure detector, which is used to monitor the gas after inflation and discharge for the first inflation anddeflation channel 131 and the second inflation anddeflation channel 312 By detecting the gas pressure value, it is convenient to add gas when the pressure is insufficient, and deflate when the pressure is too high, so as to control the size of thefirst airbag 12 and thesecond airbag 32 . Alternatively, as shown in FIG. 5 , one end of the first inflation anddeflation channel 131 and the second inflation anddeflation channel 312 can be extended to the outside world and connected to the integrated pressure monitoring and chargingdevice 5, which is a pressure detector and an integratedpressure monitoring device 5. The gas charging and discharging machine is integrated in a casing. The existing technology can be used to solve the pressure detector and the gas charging and discharging machine.

具体地，如图6-7所示，在第一充放气通道131和第二充放气通道312端口分别设有封闭阀4。其中，封闭阀4包括阀体41、阀片42和支撑盘43。阀体41可以为第一充放气通道131和第二充放气通道312的端口，也可以通过螺纹等连接方式连接在第一充放气通道131和第二充放气通道312端口处。阀片42要具有一定的柔性，阀片42位于支撑盘43和阀体41端口之间，在封闭阀4关闭时，阀片42的表面与阀体41端口内壁贴合，阀片42的外径要小于阀体41通道的内径。在支撑盘43的中间设有触点431，触点431通过多根连接杆连接在阀体41内壁上，触点431靠近阀片42的一侧具有凸起的尖部，当阀片42在受力后，阀片42与触点431的尖部与阀片42接触，阀片42在尖部的阻挡下完全，使封闭阀4打开，进行充气。Specifically, as shown in FIGS. 6-7 , closingvalves 4 are respectively provided at the ports of the first inflation anddeflation channel 131 and the second inflation anddeflation channel 312 . The closingvalve 4 includes a valve body 41 , a valve plate 42 and a support plate 43 . The valve body 41 can be the port of the first inflation anddeflation channel 131 and the second inflation anddeflation channel 312 , or can be connected to the ports of the first inflation anddeflation channel 131 and the second inflation anddeflation channel 312 by means of threads or the like. The valve plate 42 should have a certain degree of flexibility. The valve plate 42 is located between the support plate 43 and the port of the valve body 41. When the closingvalve 4 is closed, the surface of the valve plate 42 is in contact with the inner wall of the port of the valve body 41, and the outer surface of the valve plate 42 is closed. The diameter should be smaller than the inner diameter of the valve body 41 channel. A contact 431 is provided in the middle of the support plate 43. The contact 431 is connected to the inner wall of the valve body 41 through a plurality of connecting rods. The side of the contact 431 close to the valve plate 42 has a convex tip. After the force is applied, the valve plate 42 and the tip of the contact 431 are in contact with the valve plate 42, and the valve plate 42 is completely blocked by the tip portion, so that the closingvalve 4 is opened for inflation.

具体地，连接杆13为具有一定硬度的塑料材质制成，由于内镜2穿过第二固定本体31，肠道内为弯曲褶皱的形状，因此第二固定部3要具有一定的柔性，而且为了将肠道拉直连接杆13要具有一定的硬度支撑，所以连接杆13既要具有一定的柔韧性，还要有一定的硬度。Specifically, the connectingrod 13 is made of a plastic material with a certain hardness. Since theendoscope 2 passes through thesecond fixing body 31 and the intestine is in the shape of a curved fold, thesecond fixing portion 3 must have a certain flexibility, and in order to The connectingrod 13 for straightening the intestinal tract should have a certain hardness support, so the connectingrod 13 should have a certain flexibility and a certain hardness.

在使用时，内镜2依次穿过第二固定部3和第一固定部1，当遇到病灶位于肠道弯曲部位时，通过内镜2将第一固定部1带到病灶a远离内镜2的一侧，图10所示，然后通过第一充放气通道131对第一气囊12充气，使得第一气囊12的外壁与肠道内壁贴合，将肠道与第一固定部1相对固定，接着回拉内镜2，由于第一气囊12充气后在肠道内定位，内镜2会在第一气囊12内侧滑动，将内镜2的头部拉至病灶a远离第一气囊12的一侧，回拉过程中，在连接杆13一定的硬度下弯曲的肠道拉直，此时再通过第二充放气通道312对第二气囊32进行充气，将肠道与第二固定部3相对固定，从而使病灶可以出现在内镜2的视线范围内，从而进行观察确诊及其治疗。需要注意的是，实际应用时，第二气囊32不会在内镜2回拉过程中因内镜2回拉过度与内镜2脱离。当利用内镜2对病灶a手术完成后，再对第一气囊12和第二气囊32放气，取出即可。When in use, theendoscope 2 passes through thesecond fixing part 3 and the first fixingpart 1 in sequence, and when the lesion is located at the curved part of the intestine, the first fixingpart 1 is brought to the lesion a away from the endoscope through theendoscope 2 2 side, as shown in FIG. 10, and then inflate thefirst air bag 12 through the first inflation anddeflation channel 131, so that the outer wall of thefirst air bag 12 is in contact with the inner wall of the intestinal tract, and the intestinal tract is opposite to the first fixingpart 1 Fix, then pull back theendoscope 2. Since thefirst balloon 12 is positioned in the intestinal tract after inflation, theendoscope 2 will slide inside thefirst balloon 12, and the head of theendoscope 2 will be pulled to the point where the lesion a is away from thefirst balloon 12. On one side, in the process of pulling back, the bent intestine is straightened under a certain hardness of the connectingrod 13, and at this time, thesecond air bag 32 is inflated through the second inflation anddeflation channel 312, and the intestine and the second fixed part are inflated. 3 is relatively fixed, so that the lesions can appear within the sight range of theendoscope 2, so as to observe the diagnosis and treatment. It should be noted that, in practical application, thesecond balloon 32 will not be detached from theendoscope 2 due to excessive retraction of theendoscope 2 during the retraction process of theendoscope 2 . After the operation of the lesion a with theendoscope 2 is completed, thefirst air bag 12 and thesecond air bag 32 are deflated and taken out.

Claims (9)

1. A double-balloon auxiliary device for enteroscopy is characterized by comprising an endoscope (2) and a stretching mechanism;

the stretching mechanism comprises a first fixing part (1), a connecting rod (13) and a second fixing part (3);

the endoscope (2) is inserted in the first fixing part (1) and the second fixing part (3);

the first fixing part (1) is connected with the second fixing part (3) through a connecting rod (13);

the stretching mechanism is carried into a human body through the endoscope (2), the first fixing part (1) and the second fixing part (3) are controlled to realize two-point positioning in the human body through in-vitro operation, and the bent intestinal tract of the human body is straightened through the hardness of the connecting rod (13) so as to facilitate the viewing of the lens of the endoscope (2);

the first fixing part (1) and the second fixing part (3) are positioned in a human body through inflation and deflation, and the first fixing part (1) and the second fixing part (3) are attached to the outer wall of the intestinal tract for positioning during inflation; when the air is deflated, the first fixing part (1) and the second fixing part (3) can smoothly pass through the intestinal tract; the first fixing part (1) and the second fixing part (3) are both connected with a gas charging and discharging machine, and the gas charging and discharging machine is used for controlling charging and discharging.

2. A double balloon auxiliary device for enteroscopy according to claim 1, characterized in that the first fixing portion (1) comprises a first fixing body (11) and a first balloon (12);

the first air bag (12) is positioned at the periphery outer side of the first fixing body (11);

one end, far away from the second fixing part (3), of the connecting rod (13) is connected with the first fixing body (11), and a first air inflation and deflation channel (131) communicated with the first air bag (12) is arranged in the connecting rod (13).

3. A double balloon auxiliary device for enteroscopy according to claim 1, characterized in that the second fixing portion (3) comprises a second fixing body (31) and a second balloon (32);

the second air bag (32) is positioned at the outer side of the periphery of the second fixing body (31), and the second air bag (32) is positioned at a port close to the first fixing part (1);

a through connecting channel (311) is arranged on the inner wall of the second fixing body (31), and one end of the connecting channel (311) extends to the outside for inflation and deflation;

one end of the connecting rod (13) far away from the first fixing part (1) is connected in the connecting channel (311);

a second inflation and deflation channel (312) communicated with the second air bag (32) is arranged on the inner wall of the second fixing body (31), and the second inflation and deflation channel (312) extends to the outside for inflation and deflation.

4. The double-balloon auxiliary device for enteroscopy according to claim 2 or 3, wherein one end of the first inflation/deflation channel (131) and one end of the second inflation/deflation channel (312) extending to the outside are both connected with a pressure detector for monitoring the pressure value of the gas after inflation/deflation of the first inflation/deflation channel (131) and the second inflation/deflation channel (312).

5. The double balloon auxiliary device for enteroscopy according to claim 2, wherein the ports of the first inflation and deflation channel (131) and the second inflation and deflation channel (312) are respectively provided with a closing valve (4).

6. A double balloon auxiliary device for enteroscopy according to claim 1, characterized in that the connecting rod (13) is made of a plastic material with a certain hardness.

7. Double balloon aid for enteroscopy according to claim 5, characterized in that the closing valve (4) comprises a valve body (41), a valve plate (42) and a support disc (43);

the valve plate (42) and the supporting disk (43) are respectively positioned in the valve body (41);

the supporting disc (43) is fixed in the channel of the valve body (41) through a plurality of connecting rods;

a contact (431) is arranged in the middle of the support disc (43);

the valve plate (42) is positioned between the inner wall of the upper end face of the valve body (41) and the contact (431).

8. Double balloon aid for enteroscopy according to claim 7, characterized in that the valve plate (42) is made of a flexible material.

9. A double balloon auxiliary device for enteroscopy according to claim 1, characterized in that the second fixing part (3) is made of a flexible material.

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